mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-11 23:19:04 +08:00
ac014eb27a
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@646 d0cd1f9f-072b-0410-8dd7-cf729c803f20
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
///////////////////////////////////////////////////////////////////////
|
|
// File: equationdetectbase.cpp
|
|
// Description: The base class equation detection class.
|
|
// Author: Zongyi (Joe) Liu (joeliu@google.com)
|
|
// Created: Fri Aug 31 11:13:01 PST 2011
|
|
//
|
|
// (C) Copyright 2011, Google Inc.
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////
|
|
|
|
#include "allheaders.h"
|
|
#include "blobbox.h"
|
|
#include "equationdetectbase.h"
|
|
|
|
namespace tesseract {
|
|
|
|
EquationDetectBase::EquationDetectBase() {
|
|
}
|
|
|
|
EquationDetectBase::~EquationDetectBase() {
|
|
}
|
|
|
|
void EquationDetectBase::RenderSpecialText(Pix* pix,
|
|
BLOBNBOX* blob) {
|
|
ASSERT_HOST(pix != NULL && pixGetDepth(pix) == 32 && blob != NULL);
|
|
const TBOX& tbox = blob->bounding_box();
|
|
int height = pixGetHeight(pix);
|
|
const int box_width = 5;
|
|
|
|
// Coordinate translation: tesseract use left bottom as the original, while
|
|
// leptonica uses left top as the original.
|
|
Box *box = boxCreate(tbox.left(), height - tbox.top(),
|
|
tbox.width(), tbox.height());
|
|
switch (blob->special_text_type()) {
|
|
case BSTT_MATH: // Red box.
|
|
pixRenderBoxArb(pix, box, box_width, 255, 0, 0);
|
|
break;
|
|
case BSTT_DIGIT: // cyan box.
|
|
pixRenderBoxArb(pix, box, box_width, 0, 255, 255);
|
|
break;
|
|
case BSTT_ITALIC: // Green box.
|
|
pixRenderBoxArb(pix, box, box_width, 0, 255, 0);
|
|
break;
|
|
case BSTT_UNCLEAR: // blue box.
|
|
pixRenderBoxArb(pix, box, box_width, 0, 255, 0);
|
|
break;
|
|
case BSTT_NONE:
|
|
default:
|
|
// yellow box.
|
|
pixRenderBoxArb(pix, box, box_width, 255, 255, 0);
|
|
break;
|
|
}
|
|
boxDestroy(&box);
|
|
}
|
|
|
|
}; // namespace tesseract
|